OBD Guide

U0422

Invalid Data Received From Body Control Module

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–111 (est.)

Symptoms

  • Incorrect operation of electrical equipment (lighting, power windows)
  • The Check Engine light comes on
  • Problems with central locking
  • Dashboard malfunctions
  • Loss of communication with other modules

Causes

  • Problems with the CAN bus (open or short circuit)
  • Body Control Module (BCM) Malfunction
  • Bad contacts in BCM connectors
  • Software errors in BCM
  • Body Control Module Power Problems

How to Fix

  1. Check the integrity of the CAN bus and connection
  2. Inspect BCM connectors and wiring
  3. Check body control module power and ground
  4. Scan all modules for additional errors
  5. Update or reflash BCM software

Related codes

Error U0422 by Vehicle Brand